/// <summary>
/// 发起消息订阅并且指定服务器端的回调函数
/// </summary>
///<param name="reqSrvUrl">服务的地址，必须是Publish模式</param>
///<param name="resultType">服务返回的对象类型</param>
///<param name="action">自定义的消息处理方法</param>
/// <param name="function">服务器的回调函数</param>
/// <returns></returns>
private int Subscribe(string reqSrvUrl, Type resultType, Action <string> action, MyFunc <string, string> function)
{
if (this.Connect())
{
//subServiceList.Add(new SubscribeArgs() { ReqSrvUrl = reqSrvUrl, ResultType = resultType, CallBackAction = action });
return(ServiceSubscriber.SendMessage(reqSrvUrl, resultType, action, function, null));
}
else
{
return(0);
}
}
/// <summary>
/// 以当前连接（如未打开则打开），异步请求并处理数据
/// </summary>
/// <typeparam name="T">请求的数据类型</typeparam>
/// <param name="request">服务请求对象</param>
/// <param name="resultDataType">数据类型</param>
/// <param name="action">要异步执行的委托方法</param>
public void RequestServiceCurrentSubscribe <T>(ServiceRequest request, DataType resultDataType, Action <T> action)
{
//if (sub == null || sub.Closed)
// throw new InvalidOperationException("未打开连接或者连接已经关闭，请先调用Connect 方法");
CheckConnect();
ServiceSubscriber.SendMessage(request.ServiceUrl, null, (remoteMsg) =>
{
//MessageConverter<T> convert = new MessageConverter<T>(remoteMsg, resultDataType);
//if (action != null)
// action(convert.Result);
// 上面代码已经优化
ProcessRemoteMessage <T>(remoteMsg, resultDataType, null, action);
});
}
private async Task <ServiceSubscriber> GetSubscriber(string path)
{
ServiceSubscriber result = null;
var queryResult = await _consul.KV.Keys(path);
if (queryResult.Response != null)
{
var data = (await _consul.GetDataAsync(path));
if (data != null)
{
result = await GetSubscriber(data);
}
}
return(result);
}
/// <summary>
/// 取消订阅，关闭连接
/// </summary>
public void Close()
{
if (ServiceSubscriber != null)
{
if (UseConnectionPool)
{
//将连接放回连接池
PublishServicePool.Instance.BackPool(ServiceSubscriber);
}
else
{
if (!ServiceSubscriber.Closed)
{
ServiceSubscriber.Close(1);
}
}
}
}
/// <summary>
/// 以同步的方式（阻塞），获取服务执行的结果消息
/// </summary>
/// <typeparam name="T">消息类型</typeparam>
/// <param name="reqSrvUrl">服务地址</param>
/// <param name="resultDataType">消息的数据类型</param>
/// <returns>消息转换器对象，如果不成功，返回空值</returns>
public MessageConverter <T> GetServiceMessage <T>(string reqSrvUrl, DataType resultDataType)
{
CheckConnect();
//ServiceSubscriber.SendMessage(reqSrvUrl);
string remoteMsg = ServiceSubscriber.RequestMessage(reqSrvUrl);
string errMsg = ServiceConst.GetServiceErrorMessage(remoteMsg);
if (errMsg != string.Empty)
{
RaiseSubscriberError(this, new MessageEventArgs(errMsg));
return(null);
}
else
{
MessageConverter <T> convert = new MessageConverter <T>(remoteMsg, resultDataType);
return(convert);
}
}
private async Task <ServiceSubscriber> GetSubscriber(string path)
{
ServiceSubscriber result = null;
var client = await _consulClientFactory.GetClient();
var queryResult = await client.KV.Keys(path);
if (queryResult.Response != null)
{
var data = await client.GetDataAsync(path);
if (data != null)
{
result = await GetSubscriber(data);
}
}
return(result);
}
/// <summary>
/// 根据消息编号，取消当前连接订阅的服务方法，但不会关闭当前连接
/// </summary>
/// <param name="messageId"></param>
public void DeSubscribe(int messageId)
{
//CheckConnect();
if (ServiceSubscriber == null || ServiceSubscriber.Closed)
{
return;
}
else
{
if (messageId < 1)
{
RaiseSubscriberError(this, new MessageEventArgs("消息编号不能小于1,Number:" + messageId));
}
else
{
ServiceSubscriber.SendTextMessage(messageId, "[CMD]DeSubscribeService");
ServiceSubscriber.RemoveMessage(messageId);
}
}
}
private async Task <ServiceSubscriber> GetSubscriber(string path)
{
ServiceSubscriber result = null;
var zooKeeperClient = await _zookeeperClientProvider.GetZooKeeperClient();
if (zooKeeperClient == null)
{
return(null);
}
if (await zooKeeperClient.ExistsAsync(path))
{
var data = (await zooKeeperClient.GetDataAsync(path)).ToArray();
result = await GetSubscriber(data);
//var watcher = nodeWatchers.GetOrDefault(path);
//if (watcher != null)
//{
// watcher.SetCurrentData(data);
//}
}
return(result);
}
static void Main(string[] args)
{
Console.WriteLine("Please input enter to begin.");
Console.ReadLine();
Console.InputEncoding = Encoding.UTF8;
Console.OutputEncoding = Encoding.UTF8;
//配置客户端日志工厂
LoggerManager.ClientLoggerFactory.AddConsole(LogLevel.Error);
//加载配置文件
string path = Path.Combine(Directory.GetCurrentDirectory(), "config.json");
var configRoot = new ConfigurationBuilder()
.AddJsonFile(path)
.Build();
var clientConfig = configRoot.GetClientConfig();
var serviceProxyManager = new ServiceProxyManager();
//创建Autofac容器并注册服务类型
var container = GetAutofacContainer(serviceProxyManager);
//配置服务发现
var zookeeperConfig = configRoot.GetZookeeperConfig();
var zookeeperClientConfig = configRoot.GetZookeeperClientConfig();
var serializerList = new List <ISerializer>()
{
new MsgPackSerializer(LoggerManager.ClientLoggerFactory),
new ProtoBufSerializer(LoggerManager.ClientLoggerFactory)
};
var serviceProxyFactory = ServiceProxyCreator.CreateDefaultServiceProxyFactory(null);
var nodeClientFactory = NodeClientManager.CreateDefaultNodeClientFactory(zookeeperClientConfig, serializerList, LoggerManager.ClientLoggerFactory);
var serviceSubscriber = new ServiceSubscriber(zookeeperConfig,
LoggerManager.ClientLoggerFactory,
new ServiceProxyCreator(LoggerManager.ClientLoggerFactory, serviceProxyFactory, zookeeperClientConfig.Services),
new NodeClientManager(LoggerManager.ClientLoggerFactory, nodeClientFactory))
.Subscribe(container.GetNodeServiceProxyTypes())
.RegistTo(serviceProxyManager);
try
{
//连接服务
serviceProxyManager.ConnectAsync().Wait();
}
catch (AggregateException ex)
{
foreach (var e in ex.InnerExceptions)
{
if (e is NetworkException netEx)
{
Console.WriteLine($"Connect has net error. Host={netEx.Host}, Port={netEx.Port}, Message={netEx.Message}");
}
else
{
throw e;
}
}
}
try
{
//调用服务
var sampleService = container.Resolve <ISampleService>();
var result = sampleService.Welcome("XNode");
Console.WriteLine(result);
}
catch (RequestTimeoutExcption ex)
{
Console.WriteLine($"Timeout: RequestId={ex.Request.Id}");
}
catch (ServiceCallException ex)
{
Console.WriteLine($"Service call exception: ExceptionId={ex.ExceptionId}, ExceptionMessage={ex.Message}");
}
catch (Exception ex)
{
Console.WriteLine($"Error: {ex.Message}");
}
Console.ReadLine();
//关闭服务订阅
serviceSubscriber.Dispose();
//关闭服务连接
serviceProxyManager.CloseAsync().Wait();
//关闭DotNetty事件循环
BootstrapManager.Disable();
}
public string RequestMessage(string sendMessage)
{
string remoteMsg = ServiceSubscriber.RequestMessage(sendMessage);
return(remoteMsg);
}
/// <summary>
/// 向服务器发送消息，当服务器处理完后，会回调当前提供的回调方法
/// </summary>
/// <param name="message">发给服务器的消息</param>
/// <param name="ResultType">结果的对象类型</param>
/// <param name="action">客户端的回调方法</param>
/// <param name="function">在执行过程中的回调函数</param>
/// <param name="preFunction">在执行过程前的回调函数</param>
/// <returns>消息标识</returns>
public int RequestService(string message, Type ResultType, Action <string> action, MyFunc <string, string> function, MyFunc <string, string> preFunction)
{
return(ServiceSubscriber.SendMessage(message, ResultType, action, function, preFunction));
}